00349nam a2200109Ia 4500100001700000110002800017245011000045260002400155300000900179490004600188490000500234  aLefebvre, J.  aUniversite de Paris-Sud  aTransformations infinitesimales conformes et automorphismes de certaines structures presque symplectiques  aOrsay, Francec1979  a69p.  aPublications Mathematiques D'Orsay; 79-08  a